/*
 * Flashlib - QB9 common Flash library
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package com.qb9.flashlib.fsm
{
	import flash.events.Event;
	import com.qb9.flashlib.events.QEvent;
	
	internal class TransitionEvent extends QEvent
	{
		public static const TRANSITION:String = "fsmTransitionRequest";

		public var nextState:String;

		public function TransitionEvent(nextState:String, data:* = null)
		{
			super(TRANSITION, data);
			this.nextState = nextState;
		}

		public override function clone():Event
		{
			return new TransitionEvent(nextState, data);
		}
		
		protected const upperStateRegex:RegExp = /\.\.\//;

		public function isUpperState():Boolean
		{
			return nextState.search(upperStateRegex) == 0;
		}

		public function dereferenceUpperState():String
		{
			return nextState.replace(upperStateRegex, '');
		}
	}
}

